#1C2F74#1C2F74

#1C2F74 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.5% C 0.121 H 267.6°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C2F74
RGB	rgb(28, 47, 116)
HSL	hsl(227, 61%, 28%)
HSV	hsv(227, 76%, 45%)
CMYK	cmyk(75.9%, 59.5%, 0%, 54.5%)
CIE-LAB	lab(22.09, 18.65, -41.93)
CIE-LCH	lch(22.09, 45.89, 293.97°)
OKLab	oklab(33.54% -0.005 -0.1209)
OKLCH	oklch(33.54% 0.121 267.6)
XYZ	xyz(4.6467, 3.5404, 16.9581)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2F74 #74611C

analogous

#1C5B74 #1C2F74 #351C74

triadic

#1C2F74 #741C2F #2F741C

tetradic

#1C2F74 #741C5B #74611C #1C7435

square

#1C2F74 #741C5B #74611C #1C7435

split-complementary

#1C2F74 #74351C #5B741C

monochromatic

#060A19 #101B43 #1C2F74 #2843A5 #3B5BD0

Accessibility & contrast

On white

12.29

#1C2F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1C2F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2F74

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2F74	#FFFFFF	#000000	##FFFFFF
##1C2F74	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003976

Deuteranopia (green-blind)

#003173

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c2f74;
/* rgb */ color: rgb(28, 47, 116);
/* oklch */ color: oklch(33.5% 0.121 267.6);

Tailwind

colors: {
  custom: {
    50: '#66679d',
    500: '#1c2f74',
    950: '#000000',
  },
}

SCSS

$custom: #1c2f74;
$custom-light: #66679d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2f74",
  "rgb": {
    "r": 28,
    "g": 47,
    "b": 116
  },
  "hsl": {
    "h": 227.045,
    "s": 61.111,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33536,
    "c": 0.121,
    "h": 267.6
  },
  "luminance": 0.03541
}

Semantic roles & 50–950 ramp

primary

#1C2F74

secondary

#A89343

accent

#C244E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C2F74

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →